Issue 32, 2015
From the journal:

Journal of Materials Chemistry A

Boosting the oxygen reduction reaction mechanisms in IT-SOFC cathodes by catalytic functionalization†

L. Navarrete,a   C. Solísa  and  J. M. Serra*a  

* Corresponding authors

a Instituto de Teconología Química, Avda/ Los Naranjos s/n, Valencia, Spain
E-mail: jmserra@itq.upv.es
Fax: +34 963877809
Tel: +34 963879448

Abstract

A robust LSM-GDC composite was used as a backbone electrode for the infiltration of different catalysts, dispersed as oxide nanoparticles after firing. Catalyst candidates were screened using symmetric cells supported on the GDC electrolyte. Among the tested catalysts, praseodymium infiltration exhibited an outstanding and highly stable promotion effect of the oxygen reduction reaction. Impedance spectroscopy modelling provided insight into the nature of the distinct mechanisms limiting the cathode performance. The Pr-promotion in cathodes resulted in a fivefold rise in the power density peak when tested on a fully assembled anode-supported fuel cell.

Graphical abstract: Boosting the oxygen reduction reaction mechanisms in IT-SOFC cathodes by catalytic functionalization

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Article information

DOI
https://doi.org/10.1039/C5TA05187H
Article type
Communication
Submitted
10 Jul 2015
Accepted
14 Jul 2015
First published
14 Jul 2015
This article is Open Access
Creative Commons BY license

J. Mater. Chem. A, 2015,3, 16440-16444

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Boosting the oxygen reduction reaction mechanisms in IT-SOFC cathodes by catalytic functionalization

L. Navarrete, C. Solís and J. M. Serra, J. Mater. Chem. A, 2015, 3, 16440 DOI: 10.1039/C5TA05187H

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